CourseOutlineList.php in Course 8.2

Namespace

Drupal\course\Plugin\course\CourseOutline

File

src/Plugin/course/CourseOutline/CourseOutlineList.php

<?php

namespace Drupal\course\Plugin\course\CourseOutline;

use Drupal\Core\Link;
use Drupal\Core\Session\AccountInterface;
use Drupal\Core\Url;
use Drupal\course\Entity\Course;
use Drupal\course\Plugin\CourseOutlinePluginBase;
use function drupal_render;
use function entity_load;
use function entity_view;
use function render;

/**
 * @CourseOutline(
 *   id = "course",
 *   label = @Translation("Course"),
 *   description = @Translation("Displays course objects in an HTML list."),
 * )
 */
class CourseOutlineList extends CourseOutlinePluginBase {

  /**
   * {@inheritdoc}
   */
  function render(Course $course, AccountInterface $account) {

    // Iterate over objects.
    $workflow = array();
    $img = NULL;
    foreach ($course
      ->getObjects() as $key => $courseObject) {
      if ($courseObject
        ->access('see', $account)) {

        // The item will be in the list only if the user can see it. If they can
        // take it, entity_view() will output a link instead of text.
        $entity = \Drupal\course\Entity\CourseObject::load($courseObject
          ->getId());
        $render_controller = \Drupal::entityTypeManager()
          ->getViewBuilder('course_object');
        $item = $render_controller
          ->view($entity);
        if ($courseObject
          ->access('take', $account)) {

          // User can take this course object.
          $item['#class'][] = 'accessible';

          // Step is complete.
          if ($courseObject
            ->getFulfillment($account)
            ->isComplete()) {
            $item['#class'][] = 'completed';
          }
          elseif ($courseObject
            ->getFulfillment($account)
            ->getId()) {
            $item['#class'][] = 'in-progress';
          }
          if ($course
            ->getActive() === $courseObject) {
            $item['#class'][] = 'active';
          }
        }

        // Allow other modules to modify this list item.
        $courseObject
          ->overrideOutlineListItem($item);

        // Add this item to the list.
        $workflow[] = $item;
      }
    }
    if ($course
      ->getTracker($account)
      ->isComplete()) {
      $image = [
        '#uri' => 'core/misc/icons/73b355/check.svg',
        '#alt' => t('An icon'),
        '#theme' => 'image',
      ];
      $workflow[] = array(
        '#markup' => render($image) . Link::fromTextAndUrl(t('Complete'), Url::fromRoute('course.complete', [
          'course' => $course
            ->id(),
        ]))
          ->toString(),
        '#id' => 'complete',
      );
    }
    $output = [];
    if ($workflow) {
      $page = [];
      $page['course_outline']['#theme'] = 'item_list';
      $page['course_outline']['#items'] = $workflow;
      return $page;
    }
    return $output;
  }

}

Classes

Name	Description
CourseOutlineList	Plugin annotation @CourseOutline( id = "course", label = @Translation("Course"), description = @Translation("Displays course objects in an HTML list."), )